For CT transformation ratio measurement range 15000A/5A, 3000A/1A. PT transformation ratio test range: 500KV: 100V. The measurement range when an external booster or current booster is not required. Using a thermal printer to automatically screen and print typical report usage data is very suitable for field data comparison. It can save 1000 sets of test data and can be saved for 10 years after power failure.

Single-phase AC220V input power supply, and the working power supply and power supply share a common input port, making the design more scientific and reasonable, and using it more safe and reliable. The working power supply and power supply of other similar products are input separately, and three-phase AC380V dual live wire input is also required to meet the experimental requirements. There are significant safety hazards, which can easily lead to accidents such as electric shock and even casualties for users.